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Stainless-steel poles were arranged by an artist for the purpose of producing an enhanced display of lightning in a field of nearly one square mile. The magnetic field in New Mexico, where the rods are placed, dips 64 degree below the horizontal and has a horizontal component of magnitude 2.5 x 10-5 T. Find the magnetic force on one of these poles, 6.89 meter long, when it transmits an upward current of 1.98 x 104 A during a lightning discharge.
A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = -28.0 cm). An object is placed to the left of the converging lens, and the final image produced by the two-lens combination lies 19.8 cm to the left of the d..
Decide the magnitude and direction of the force on an electron traveling 3.87e6 m/s horizontally to the west in a perpendicularly upward magnetic field of strength 1.20T.
On a cold day, 16000 J of heat leaks out of a house. The inside temperature is 20.0° C, What is the increase in the entropy of the universe
A uniform rope of mass m and length L hangs from a ceiling. (a) Show that the speed of a transverse wave on the rope is a function of y, the distance from the lower end, and is given by v = √(gy). (b) Show that the time a transverse wave takes to..
The task is to design a rocket which will accelerate a payload of mas 100 kg, from a velocity of 0 m/s to 6,000 m/s in intersteller space.
A blow-dryer and a vacuum cleaner each operate with a voltage of120 V. The current rating of the blow-dryer is 12 A, and that of the vacuum cleaner is 5.5 A. Determine the power consumed by theblow-dryer.
question1at what distance from a proton is the magnitude of its electric field 2.3times105? what is magnitude of the
A student weighing 800 N crouches on a scale and suddenly springs vertically upward.His roommate notices that the scale reads 900 N, With what acceleration does he leaves the scale
An apple that weights 2.7 N falls vertically downward from rest for 1.4 s. What is the change in the apple's momentum per second? What is the total change in its momentum during the 1.4-second fall?
a slender rod with a length of 0.300m rotates with an angular speed of 8.80 rads about an axis through one end and
the surface waters of tropical oceans are at a temperature of 28c while water at a depth of 1200 m is at 3c. it has
Points A and B have electric potentials of 257 V and 129 V, respectively. When an electron released from rest at point A arrives at point C its kinetic energy is KE1, What is the electric potential at point C
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